

.ContextMenu .Stone {
    height:5em;
    width:5em;
    -webkit-border-radius:2.5em;
    -moz-border-radius:50%;
    opacity:0;
    line-height:5em;
    font-size:1.2em;
    text-align:center;
}


.chosen_up .up {
  opacity:0.75;
}
.chosen_down .down {
  opacity:0.75;
}
.chosen_left .left {
  opacity:0.75;
}
.chosen_right .right {
  opacity:0.75;
}

